Hi Jonathon,
Did you ask Jeff Stake about this problem? Jeff posted a message on the TacT Audio User's Group (TAUG) asking about this same problem, saying it was for someone else.
Are you able to get the S2150XDM to communicate with the software on your PC? If so, can you perform a firmware download? As you mentioned, you could remove the top cover and inspect the fuses and check that they haven't blown by using a multimeter or just a battery, some wires, and a bulb from a flashlight. Another thing you can do while the cover is removed is to check that any plug-in modules and connectors are properly inserted. Make sure that you ground yourself while you are touching any of the parts.
I don't have any experience with the S2150XDM, although I do have several S2150s and other TacT gear. I'm sorry to say that I don't know of anyone who can repair TacT gear other than Boz and Anthony. Boz doesn't seem to be interested in repairing old products and Anthony has been sidelined by some personal issues. There is another Audigon member, "ncaudio", who has some experience working on S2150s, perhaps you could ask him for help. Here's an ad he ran last year:
http://app.audiogon.com/listings/tact-s2150-m2150-want-black-front-panels-bad-amps
Best of luck to you,
Tip
Did you ask Jeff Stake about this problem? Jeff posted a message on the TacT Audio User's Group (TAUG) asking about this same problem, saying it was for someone else.
Are you able to get the S2150XDM to communicate with the software on your PC? If so, can you perform a firmware download? As you mentioned, you could remove the top cover and inspect the fuses and check that they haven't blown by using a multimeter or just a battery, some wires, and a bulb from a flashlight. Another thing you can do while the cover is removed is to check that any plug-in modules and connectors are properly inserted. Make sure that you ground yourself while you are touching any of the parts.
I don't have any experience with the S2150XDM, although I do have several S2150s and other TacT gear. I'm sorry to say that I don't know of anyone who can repair TacT gear other than Boz and Anthony. Boz doesn't seem to be interested in repairing old products and Anthony has been sidelined by some personal issues. There is another Audigon member, "ncaudio", who has some experience working on S2150s, perhaps you could ask him for help. Here's an ad he ran last year:
http://app.audiogon.com/listings/tact-s2150-m2150-want-black-front-panels-bad-amps
Best of luck to you,
Tip